Package org.codehaus.jackson.io
Class JsonStringEncoder
- java.lang.Object
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- org.codehaus.jackson.io.JsonStringEncoder
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public final class JsonStringEncoder extends Object
Helper class used for efficient encoding of JSON String values (including JSON field names) into Strings or UTF-8 byte arrays.Note that methods in here are somewhat optimized, but not ridiculously so. Reason is that conversion method results are expected to be cached so that these methods will not be hot spots during normal operation.
- Since:
- 1.6
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Field Summary
Fields Modifier and Type Field Description protected ByteArrayBuilder
_byteBuilder
Lazily-constructed builder used for UTF-8 encoding of text values (quoted and unquoted)protected char[]
_quoteBuffer
Temporary buffer used for composing quote/escape sequencesprotected TextBuffer
_textBuffer
Lazily constructed text buffer used to produce JSON encoded Strings as characters (without UTF-8 encoding)protected static ThreadLocal<SoftReference<JsonStringEncoder>>
_threadEncoder
ThisThreadLocal
contains aSoftReference
to aBufferRecycler
used to provide a low-cost buffer recycling between reader and writer instances.
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Constructor Summary
Constructors Constructor Description JsonStringEncoder()
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description byte[]
encodeAsUTF8(String text)
Will encode given String as UTF-8 (without any quoting), return resulting byte array.static JsonStringEncoder
getInstance()
Factory method for getting an instance; this is either recycled per-thread instance, or a newly constructed one.char[]
quoteAsString(String input)
Method that will quote text contents using JSON standard quoting, and return results as a character arraybyte[]
quoteAsUTF8(String text)
Will quote given JSON String value using standard quoting, encode results as UTF-8, and return result as a byte array.
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Field Detail
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_threadEncoder
protected static final ThreadLocal<SoftReference<JsonStringEncoder>> _threadEncoder
ThisThreadLocal
contains aSoftReference
to aBufferRecycler
used to provide a low-cost buffer recycling between reader and writer instances.
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_textBuffer
protected TextBuffer _textBuffer
Lazily constructed text buffer used to produce JSON encoded Strings as characters (without UTF-8 encoding)
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_byteBuilder
protected ByteArrayBuilder _byteBuilder
Lazily-constructed builder used for UTF-8 encoding of text values (quoted and unquoted)
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_quoteBuffer
protected final char[] _quoteBuffer
Temporary buffer used for composing quote/escape sequences
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Method Detail
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getInstance
public static JsonStringEncoder getInstance()
Factory method for getting an instance; this is either recycled per-thread instance, or a newly constructed one.
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quoteAsString
public char[] quoteAsString(String input)
Method that will quote text contents using JSON standard quoting, and return results as a character array
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quoteAsUTF8
public byte[] quoteAsUTF8(String text)
Will quote given JSON String value using standard quoting, encode results as UTF-8, and return result as a byte array.
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encodeAsUTF8
public byte[] encodeAsUTF8(String text)
Will encode given String as UTF-8 (without any quoting), return resulting byte array.
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